US4802592A - Floating liquid skimmers having a floating weir - Google Patents

Floating liquid skimmers having a floating weir Download PDF

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Publication number
US4802592A
US4802592A US07/156,365 US15636588A US4802592A US 4802592 A US4802592 A US 4802592A US 15636588 A US15636588 A US 15636588A US 4802592 A US4802592 A US 4802592A
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US
United States
Prior art keywords
valve
floating
float
scuttle
liquid
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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US07/156,365
Inventor
Allistair P. Wessels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FAHET SA A Corp OF REPUBLIC OF SWITZERLAND
Arneson Products Inc
Original Assignee
Fahet NV
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Assigned to FAHET NV reassignment FAHET NV ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WESSELS, ALLISTAIR P.
Application granted granted Critical
Publication of US4802592A publication Critical patent/US4802592A/en
Assigned to ARNESON PRODUCTS, INC. A CORPORATION OF CA reassignment ARNESON PRODUCTS, INC. A CORPORATION OF CA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FAHET S.A.
Assigned to FAHET S.A. A CORPORATION OF THE REPUBLIC OF SWITZERLAND reassignment FAHET S.A. A CORPORATION OF THE REPUBLIC OF SWITZERLAND ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FAHET N.V., A CORPORATION OF THE NETHERLANDS
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • E04H4/1654—Self-propelled cleaners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2433—Discharge mechanisms for floating particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7339—By weight of accumulated fluid
    • Y10T137/7342—In sinking or bucket type float
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7358—By float controlled valve
    • Y10T137/7404—Plural floats
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86236—Tank with movable or adjustable outlet or overflow pipe
    • Y10T137/86252—Float-supported outlet

Definitions

  • This invention relates to floating skimmers of the kind which can be used to skim the surfaces of swimming pools.
  • Floating skimmers connected to suction hoses are known.
  • a suction hose connected to an automatic pool cleaning service is also connected to a floating skimmer.
  • the water flowing in the hose drives a turbine which drives a pump and the pump draws water over a floating weir on the skimming device.
  • the skimming device is kept buoyant by means of a suitable float. In this case the skimming device passes water through a filter chamber and discharges it back into the pool.
  • a floating skimmer comprises a body, a floating weir at an edge of the body over which liquid can pass into the body, a suction outlet in the base of the body for connection to a suction hose, at least one float for keeping the body buoyant and which is hinged to the body, a scuttle valve in a wall of the body, and motion transmitting means between the float and the scuttle valve so that as the float pivots downwardly when the body rises in liquid, the scuttle valve is opened to allow liquid to enter the body and cause it to float at its original level.
  • the body is in the form of an open-topped, rectangular box which has floats hinged to it on opposite sides thereof and which has a scuttle valve in each of those sides connected to the relevant float.
  • the scuttle valve comprises an opening in the wall of the body and a mushroom valve member having a valve stem which projects outwardly from the body and which is in the form of a bent rod connected to the float.
  • the skimmer may comprise a connector for connecting the suction outlet of the body with a suction hose going to an automatic swimming pool cleaner.
  • the suction outlet of the body is controlled by a valve which permits a predetermined leak of liquid to take place out of the body into the suction hose.
  • the suction outlet of a body is controlled by a changeover valve operable selectively to connect the interior of the body to the suction hose or to connect the suction hose to an automatic pool cleaner.
  • FIG. 1 shows a top view of a floating skimmer
  • FIG. 2 shows a cross-section on the line 2--2 in FIG. 1;
  • FIG. 3 shows a cross section on the line 3--3 in FIG. 1.
  • the illustrated embodiment comprises a rectangular box 10 which is rendered buoyant by means of a pair of floats 11 and 12 pivoted to opposed sides 13 of the box.
  • the other two sides are of reduced height and carry floating weirs 14.
  • Each side 13 is formed with a scuttle hole 15 which can be closed by a mushroom valve 16.
  • the stem of each mushroom valve 16 is in the form of a bent rod 17 secured to a float 11 or 12.
  • valve 18 In the floor of the box 10 there is secured a valve 18 of the kind described in S.A. Pat. No. 85/2403 equivalent to U.S. Pat. No. 4,683,599.
  • the valve 18 is in the leg of a T-piece 19 which can be connected in a suction line between a filter plant and an automatic pool cleaner.
  • the valve 18 and the T-piece 19 can be relaced with a changeover valve which may be actuated manually so that the suction hose is connected either to the cleaner or to the floating skimmer.
  • a changeover valve which may be actuated manually so that the suction hose is connected either to the cleaner or to the floating skimmer.
  • Such a valve could be actuated automatically at the start of a filter cycle so that during one cycle skimming takes place and during the next cycle suction cleaning.
  • valve 18 In operation the valve 18 is set to allow a predetermined leak from the box 10 into the suction line while the device floats in water.
  • the floats 11 and 12 will normally be in the position illustrated for the float 11 in FIG. 2, i.e. the valves 16 are closed. Should conditions change and the device tend to rise in the water, the floats will drop and the valves 16 will open as shown in connection with the float 12 in FIG. 2. This admits water into the box 10 and thus tends to scuttle the box 10 until the floats resume their normal position and the valves 16 close again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Float Valves (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)
  • Cleaning In General (AREA)

Abstract

The floating skimmer has a body fitted with a floating weir and with a suction outlet in its base for connection to a suction hose. A float is provided to keep the body afloat. The float is hinged to a wall of the body. A scuttle valve is provided in a wall of the body and is connected to the float. If the body should rise in the water, the float drops and opens the scuttle valve to admit water to the body and scuttle it so that it sinks to its former level.

Description

BACKGROUND OF THE INVENTION
This invention relates to floating skimmers of the kind which can be used to skim the surfaces of swimming pools.
Floating skimmers connected to suction hoses are known. In one such proposal (see U.S. Pat. No. 3,928,202) a suction hose connected to an automatic pool cleaning service is also connected to a floating skimmer. The water flowing in the hose drives a turbine which drives a pump and the pump draws water over a floating weir on the skimming device. The skimming device is kept buoyant by means of a suitable float. In this case the skimming device passes water through a filter chamber and discharges it back into the pool.
If a floating skimmer is connected directly to the suction line, so that water coming over the floating weir passes to the filtration plant, the level at which the device floats will change as the suction force and other conditions change, with the results that effective skimming is not possible at all times.
SUMMARY OF THE INVENTION
According to the invention a floating skimmer comprises a body, a floating weir at an edge of the body over which liquid can pass into the body, a suction outlet in the base of the body for connection to a suction hose, at least one float for keeping the body buoyant and which is hinged to the body, a scuttle valve in a wall of the body, and motion transmitting means between the float and the scuttle valve so that as the float pivots downwardly when the body rises in liquid, the scuttle valve is opened to allow liquid to enter the body and cause it to float at its original level.
In the preferred form of the invention the body is in the form of an open-topped, rectangular box which has floats hinged to it on opposite sides thereof and which has a scuttle valve in each of those sides connected to the relevant float.
Conveniently the scuttle valve comprises an opening in the wall of the body and a mushroom valve member having a valve stem which projects outwardly from the body and which is in the form of a bent rod connected to the float.
It is also preferred that there be floating weirs on each of those two sides which are not attached to the floats.
The skimmer may comprise a connector for connecting the suction outlet of the body with a suction hose going to an automatic swimming pool cleaner.
In one version, the suction outlet of the body is controlled by a valve which permits a predetermined leak of liquid to take place out of the body into the suction hose.
In another version, the suction outlet of a body is controlled by a changeover valve operable selectively to connect the interior of the body to the suction hose or to connect the suction hose to an automatic pool cleaner.
DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail by way of example only, with reference to the accompanying drawings in which:
FIG. 1 shows a top view of a floating skimmer;
FIG. 2 shows a cross-section on the line 2--2 in FIG. 1; and
FIG. 3 shows a cross section on the line 3--3 in FIG. 1.
DESCRIPTION OF AN EMBODIMENT
The illustrated embodiment comprises a rectangular box 10 which is rendered buoyant by means of a pair of floats 11 and 12 pivoted to opposed sides 13 of the box. The other two sides are of reduced height and carry floating weirs 14. Each side 13 is formed with a scuttle hole 15 which can be closed by a mushroom valve 16. The stem of each mushroom valve 16 is in the form of a bent rod 17 secured to a float 11 or 12.
In the floor of the box 10 there is secured a valve 18 of the kind described in S.A. Pat. No. 85/2403 equivalent to U.S. Pat. No. 4,683,599. The valve 18 is in the leg of a T-piece 19 which can be connected in a suction line between a filter plant and an automatic pool cleaner. As an alternative the valve 18 and the T-piece 19 can be relaced with a changeover valve which may be actuated manually so that the suction hose is connected either to the cleaner or to the floating skimmer. Such a valve could be actuated automatically at the start of a filter cycle so that during one cycle skimming takes place and during the next cycle suction cleaning.
In operation the valve 18 is set to allow a predetermined leak from the box 10 into the suction line while the device floats in water. The floats 11 and 12 will normally be in the position illustrated for the float 11 in FIG. 2, i.e. the valves 16 are closed. Should conditions change and the device tend to rise in the water, the floats will drop and the valves 16 will open as shown in connection with the float 12 in FIG. 2. This admits water into the box 10 and thus tends to scuttle the box 10 until the floats resume their normal position and the valves 16 close again.

Claims (6)

I claim:
1. A floating skimmer which comprises a body, a floating weir at an edge of the body over which liquid can pass into the body, a suction outlet in the base of the body for connection to a suction hose, at least one float for keeping the body buoyant and which is hinged to the body, a scuttle valve in a wall of the body, and motion transmitting means between the float and the scuttle valve so that as the float pivots downwardly when the body rises in liquid, the scuttle valve is opened to allow liquid to enter the body and cause it to float at its original level.
2. A floating skimmer according to claim 1 in which the scuttle valve comprises an opening in the wall of the body and a mushroom valve member having a valve stem which projects outwardly from the body and which is in the form of a bent rod connected to the float.
3. A floating skimmer according to claim 2 in which the body is in the form of an open-topped, rectangular box which has floats hinged to it on opposite sides thereof and which has a scuttle valve in each of those sides connected to the relevant float.
4. A floating skimmer according to claim 3 in which there are floating weirs on each of those sides of the box which do not have floats hinged to them.
5. A floating skimmer according to claim 4 in which the suction outlet of the body is controlled by a valve which permits a predetermined leak of liquid to take place to of the body into the suction hose.
6. A floating skimmer according to claim 4 in which the suction outlet of the body is controlled by a changeover valve operable selectively to connect the interior of the body to the suction hose or to connect the suction hose to an automatic pool cleaner.
US07/156,365 1987-02-17 1988-02-16 Floating liquid skimmers having a floating weir Expired - Fee Related US4802592A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA871137 1987-02-17
ZA87/1137 1987-02-17

Publications (1)

Publication Number Publication Date
US4802592A true US4802592A (en) 1989-02-07

Family

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Family Applications (1)

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US07/156,365 Expired - Fee Related US4802592A (en) 1987-02-17 1988-02-16 Floating liquid skimmers having a floating weir

Country Status (5)

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US (1) US4802592A (en)
AU (1) AU1173688A (en)
DE (1) DE3804762A1 (en)
ES (1) ES2009534A6 (en)
FR (1) FR2610915B1 (en)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5106492A (en) * 1990-12-06 1992-04-21 Distinti John A Solar powered swimming pool skimmer
US5133854A (en) * 1990-07-13 1992-07-28 Tibor Horvath Skimmer with self-adjusting floating collector
US5143605A (en) * 1991-11-25 1992-09-01 David Masciarelli Mobile floating skimmer
US5275721A (en) * 1993-02-08 1994-01-04 Oommen Mathews Swimming pool super-skimmer
US5303728A (en) * 1992-08-10 1994-04-19 Donald Senatore Water conservation system
US5348648A (en) * 1991-10-03 1994-09-20 Ceca, S.A. Flotation device for the treatment of water polluted by hydrocarbons
US5413707A (en) * 1994-04-25 1995-05-09 Shatilov; Alexander Y. Aquarium surface sweep prefilter
US5439600A (en) * 1992-02-07 1995-08-08 Pasoz; Louis W. Apparatus and method for removal of floating debris
US5498348A (en) * 1991-10-14 1996-03-12 Plink; Max R. Mobile floating surface skimmer
US6063274A (en) * 1997-08-19 2000-05-16 Rivera; Ceferino Aponte Self leveling skimmer
USD432206S (en) * 2000-01-06 2000-10-17 Polaris Pool Systems, Inc. Floating skimmer
US6159361A (en) * 1997-12-30 2000-12-12 Lapointe; Bernard Oil-reclaiming bouyant apparatus
US6187181B1 (en) 1999-11-01 2001-02-13 Polaris Pool Systems, Inc. Floating skimmer
US6224753B1 (en) * 1998-12-24 2001-05-01 Sevylor International Water catchment device floating at the surface of a basin and supplying a pumping system
US6238577B1 (en) 2000-01-14 2001-05-29 Jet, Inc. Self-leveling weir
US6474361B2 (en) 2000-04-18 2002-11-05 Poppe Engineering, Inc. Floating weir assembly and fluid flow management system comprising same
US20040154092A1 (en) * 2001-05-08 2004-08-12 Lyall Douglas Frank Rea Pool skimmer
US20050006288A1 (en) * 2003-07-10 2005-01-13 Bauckman Mark J. Automatic swimming pool cleaners with shaped floats and water-temperature or -pressure indicators and water-circulation systems incorporating such indicators
US20050236311A1 (en) * 2002-07-01 2005-10-27 Terrien Richard J Manually controlled skimming of industrial oil contaminants
US20060102532A1 (en) * 2004-11-16 2006-05-18 Cadotte Roland Jr Water surface cleaning machine
US7125200B1 (en) 2004-03-12 2006-10-24 Fulton Adam S Flow control system for a holding pond
US8307485B2 (en) 2008-09-16 2012-11-13 Hayward Industries, Inc. Apparatus for facilitating maintenance of a pool cleaning device
US8449768B2 (en) 2010-10-07 2013-05-28 National Response Corporation Automatic tilting oil skimmer frame
US8475656B1 (en) * 2010-07-20 2013-07-02 Michael E. Neumann Floating surface skimmer
US8784652B2 (en) 2010-09-24 2014-07-22 Poolvergnuegen Swimming pool cleaner with a rigid debris canister
US8869337B2 (en) 2010-11-02 2014-10-28 Hayward Industries, Inc. Pool cleaning device with adjustable buoyant element
US20150129480A1 (en) * 2013-11-12 2015-05-14 Louis Pasoz System for removal of contaminants in water
US9051702B2 (en) 2009-05-11 2015-06-09 Thirsty Duck, Lp Flow control system for a detention pond
US9120034B1 (en) 2011-01-04 2015-09-01 Stephen Richard Leventhal Self-adjusting gravity separator and a method of using
US9347582B2 (en) 2014-08-14 2016-05-24 Thirsty Duck, Lp System, method, and apparatus for optimizing the flow rate through detention and surge facilities
US9394673B2 (en) 2013-03-15 2016-07-19 Thirsty Duck, Lp Skimmer system
US9677294B2 (en) 2013-03-15 2017-06-13 Hayward Industries, Inc. Pool cleaning device with wheel drive assemblies
US11326362B2 (en) * 2019-12-18 2022-05-10 Justin Paul Wright Floatation accessory for a pool vacuum

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US614059A (en) * 1898-11-08 Jay noble
US2597728A (en) * 1950-07-05 1952-05-20 Lester L Hink Suction screen and foot valve
US2663425A (en) * 1949-08-20 1953-12-22 Taylor Sales Engineering Corp Floating liquid intake
US3860518A (en) * 1971-08-27 1975-01-14 Evan R Henricksen Apparatus and method for cleaning swimming pools
US4105557A (en) * 1977-03-09 1978-08-08 Weatherholt Brian R Pool skimmer
US4136712A (en) * 1975-08-14 1979-01-30 Toyota Jidosha Kogyo Kabushiki Kaisha Sealed reservoir for brake master cylinder
US4746424A (en) * 1986-11-03 1988-05-24 Drew Richard H Floating swimming pool skimmer

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FR1232739A (en) * 1958-08-25 1960-10-11 Apparatus for removing dirt floating on the surface of liquids in swimming pools, large reservoirs, ponds or the like
FR79928E (en) * 1961-06-08 1963-02-15 Apparatus for removing dirt floating on the surface of liquids in swimming pools, large reservoirs, ponds or the like
US3745115A (en) * 1970-07-13 1973-07-10 M Olsen Method and apparatus for removing and reclaiming oil-slick from water

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US614059A (en) * 1898-11-08 Jay noble
US2663425A (en) * 1949-08-20 1953-12-22 Taylor Sales Engineering Corp Floating liquid intake
US2597728A (en) * 1950-07-05 1952-05-20 Lester L Hink Suction screen and foot valve
US3860518A (en) * 1971-08-27 1975-01-14 Evan R Henricksen Apparatus and method for cleaning swimming pools
US4136712A (en) * 1975-08-14 1979-01-30 Toyota Jidosha Kogyo Kabushiki Kaisha Sealed reservoir for brake master cylinder
US4105557A (en) * 1977-03-09 1978-08-08 Weatherholt Brian R Pool skimmer
US4746424A (en) * 1986-11-03 1988-05-24 Drew Richard H Floating swimming pool skimmer

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133854A (en) * 1990-07-13 1992-07-28 Tibor Horvath Skimmer with self-adjusting floating collector
US5106492A (en) * 1990-12-06 1992-04-21 Distinti John A Solar powered swimming pool skimmer
US5348648A (en) * 1991-10-03 1994-09-20 Ceca, S.A. Flotation device for the treatment of water polluted by hydrocarbons
US5498348A (en) * 1991-10-14 1996-03-12 Plink; Max R. Mobile floating surface skimmer
US5143605A (en) * 1991-11-25 1992-09-01 David Masciarelli Mobile floating skimmer
US5439600A (en) * 1992-02-07 1995-08-08 Pasoz; Louis W. Apparatus and method for removal of floating debris
US5303728A (en) * 1992-08-10 1994-04-19 Donald Senatore Water conservation system
US5275721A (en) * 1993-02-08 1994-01-04 Oommen Mathews Swimming pool super-skimmer
US5413707A (en) * 1994-04-25 1995-05-09 Shatilov; Alexander Y. Aquarium surface sweep prefilter
US6063274A (en) * 1997-08-19 2000-05-16 Rivera; Ceferino Aponte Self leveling skimmer
US6159361A (en) * 1997-12-30 2000-12-12 Lapointe; Bernard Oil-reclaiming bouyant apparatus
US6224753B1 (en) * 1998-12-24 2001-05-01 Sevylor International Water catchment device floating at the surface of a basin and supplying a pumping system
US6187181B1 (en) 1999-11-01 2001-02-13 Polaris Pool Systems, Inc. Floating skimmer
USD432206S (en) * 2000-01-06 2000-10-17 Polaris Pool Systems, Inc. Floating skimmer
US6238577B1 (en) 2000-01-14 2001-05-29 Jet, Inc. Self-leveling weir
US6474361B2 (en) 2000-04-18 2002-11-05 Poppe Engineering, Inc. Floating weir assembly and fluid flow management system comprising same
US20040154092A1 (en) * 2001-05-08 2004-08-12 Lyall Douglas Frank Rea Pool skimmer
US7146658B2 (en) * 2001-05-08 2006-12-12 David Travis Rea Lyall Pool skimmer
US20050236311A1 (en) * 2002-07-01 2005-10-27 Terrien Richard J Manually controlled skimming of industrial oil contaminants
US7384548B2 (en) * 2002-07-01 2008-06-10 Terrien Richard J Manually controlled skimming of industrial oil contaminants
US6979400B2 (en) * 2003-07-10 2005-12-27 Zodiac Pool Care, Inc. Automatic swimming pool cleaners with shaped floats and water-temperature or -pressure indicators and water-circulation systems incorporating such indicators
US20050006288A1 (en) * 2003-07-10 2005-01-13 Bauckman Mark J. Automatic swimming pool cleaners with shaped floats and water-temperature or -pressure indicators and water-circulation systems incorporating such indicators
US7125200B1 (en) 2004-03-12 2006-10-24 Fulton Adam S Flow control system for a holding pond
US20060102532A1 (en) * 2004-11-16 2006-05-18 Cadotte Roland Jr Water surface cleaning machine
US8307485B2 (en) 2008-09-16 2012-11-13 Hayward Industries, Inc. Apparatus for facilitating maintenance of a pool cleaning device
US8343339B2 (en) 2008-09-16 2013-01-01 Hayward Industries, Inc. Apparatus for facilitating maintenance of a pool cleaning device
US9051702B2 (en) 2009-05-11 2015-06-09 Thirsty Duck, Lp Flow control system for a detention pond
US8475656B1 (en) * 2010-07-20 2013-07-02 Michael E. Neumann Floating surface skimmer
US8784652B2 (en) 2010-09-24 2014-07-22 Poolvergnuegen Swimming pool cleaner with a rigid debris canister
US8449768B2 (en) 2010-10-07 2013-05-28 National Response Corporation Automatic tilting oil skimmer frame
US8869337B2 (en) 2010-11-02 2014-10-28 Hayward Industries, Inc. Pool cleaning device with adjustable buoyant element
US9120034B1 (en) 2011-01-04 2015-09-01 Stephen Richard Leventhal Self-adjusting gravity separator and a method of using
US9394673B2 (en) 2013-03-15 2016-07-19 Thirsty Duck, Lp Skimmer system
US9677294B2 (en) 2013-03-15 2017-06-13 Hayward Industries, Inc. Pool cleaning device with wheel drive assemblies
US20150129480A1 (en) * 2013-11-12 2015-05-14 Louis Pasoz System for removal of contaminants in water
US9580336B2 (en) * 2013-11-12 2017-02-28 Louis Pasoz System for removal of contaminants in water
US9347582B2 (en) 2014-08-14 2016-05-24 Thirsty Duck, Lp System, method, and apparatus for optimizing the flow rate through detention and surge facilities
US11326362B2 (en) * 2019-12-18 2022-05-10 Justin Paul Wright Floatation accessory for a pool vacuum

Also Published As

Publication number Publication date
AU1173688A (en) 1988-08-18
FR2610915A1 (en) 1988-08-19
DE3804762A1 (en) 1988-08-25
ES2009534A6 (en) 1989-10-01
FR2610915B1 (en) 1991-08-02

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